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mediatek: drop PCIe reset assert delay patch

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This patch has already been merged into linux 5.17 kernel.

Link: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.17.y&id=65ace9a85fa7f88aec4d9d842061108161fa47bc
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Link: https://github.com/openwrt/openwrt/pull/22175
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Shiji Yang 2026-02-26 00:03:30 +08:00 committed by Hauke Mehrtens
parent 018ba6e5b8
commit 6e7d23be8b
2 changed files with 1 additions and 35 deletions
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34
target/linux/mediatek/patches-6.12/601-PCI-mediatek-Assert-PERST-for-100ms-for-power-and-cl.patch
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@ -1,34 +0,0 @@
From: qizhong cheng <qizhong.cheng@mediatek.com>
Date: Mon, 27 Dec 2021 21:31:10 +0800
Subject: [PATCH] PCI: mediatek: Assert PERST# for 100ms for power and clock to
stabilize
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Described in PCIe CEM specification sections 2.2 (PERST# Signal) and
2.2.1 (Initial Power-Up (G3 to S0)). The deassertion of PERST# should
be delayed 100ms (TPVPERL) for the power and clock to become stable.
Link: https://lore.kernel.org/r/20211227133110.14500-1-qizhong.cheng@mediatek.com
Signed-off-by: qizhong cheng <qizhong.cheng@mediatek.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Pali Rohár <pali@kernel.org>
---
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -700,6 +700,13 @@ static int mtk_pcie_startup_port_v2(stru
*/
msleep(100);
+ /*
+ * Described in PCIe CEM specification sections 2.2 (PERST# Signal) and
+ * 2.2.1 (Initial Power-Up (G3 to S0)). The deassertion of PERST# should
+ * be delayed 100ms (TPVPERL) for the power and clock to become stable.
+ */
+ msleep(100);
+
/* De-assert PHY, PE, PIPE, MAC and configuration reset */
val = readl(port->base + PCIE_RST_CTRL);
val |= PCIE_PHY_RSTB | PCIE_PERSTB | PCIE_PIPE_SRSTB |

2
target/linux/mediatek/patches-6.12/710-pci-pcie-mediatek-add-support-for-coherent-DMA.patch
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@ -61,7 +61,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
struct mtk_pcie_port;
/**
@@ -1052,6 +1058,27 @@ static int mtk_pcie_setup(struct mtk_pci
@@ -1045,6 +1051,27 @@ static int mtk_pcie_setup(struct mtk_pci
struct mtk_pcie_port *port, *tmp;
int err, slot;